Detachable lockdown device for arena chair

Abstract

An apparatus for removably mounting a chair assembly to a rigid support surface such as an arena floor. The apparatus essentially comprises a base, a plurality of seat support members, a plurality of alignment members, removable securing means and unlocking means. The seat support members are attached to and extend upward from the base. The top parts of the seat support members attach to a seat member. The alignment members extend downward from opposite sides of the base and fit into openings in a rigid support surface, such as the floor of an arena. They ensure that the chair is properly aligned when installed. The removable securing means fits through an opening in the center of the base. Placing the removable securing means through an opening in the base and engaging it into an opening in the floor secures the detachable arena chair to the rigid support surface. The removable securing means is designed to be only engaged and disengaged with the unlocking means.

We claim: 
     
       1. Apparatus for removably mounting a chair assembly to a rigid support surface, comprising a base member having a base member opening therethrough;   seat support members attached to and extending generally at angles greater than 0 degrees to the plane of said base member for mounting thereon a seat member;   a plurality of alignment members attached to and extending from said base member on substantially opposite sides of said opening, said alignment members being adapted to be received into openings in the rigid support surface;   removable securing means adapted to extend through said opening for securing said base member in engagement with the rigid support surface; and   unlocking means engagable with said securing means for disengaging said securing means from enagagement with the rigid surface.   
     
     
       2. The apparatus of claim 1, wherein said base member opening is approximately in the center of said base member. 
     
     
       3. The apparatus of claim 1, wherein said removable securing means comprises a socket head cap screw and said unlocking means comprises a hex wrench. 
     
     
       4. The apparatus of claim 3, wherein said socket head cap screw has a fowling member for preventing a standard hex wrench from disengaging said socket head cap screw and said hex wrench has an opening in the center into which fowling member fits. 
     
     
       5. The apparatus of claim 1, further comprising means for tethering said removable securing means to said base member. 
     
     
       6. The apparatus of claim 5, wherein said tethering means comprises: a flange with a flange opening in its center, wherein said flange is attached to said base member so that said flange opening is directly in line with said base member opening;   a securing means secured to said removable securing means between said flange opening and said base member opening.   
     
     
       7. The apparatus of claim 1 wherein said base member comprises a plurality of base side members and a base attaching member, wherein: said base side members are attached to one another to form a rectangle;   said base attaching member is attached to one or more side members;   said alignment members extend from said base attaching member; and   said base opening is in said base attaching member.   
     
     
       8. The apparatus of claim 7 wherein said base attaching means extends between and is attached to two said base side members so that said alignment members extend downward. 
     
     
       9. The apparatus of claim 7 wherein said base attaching means is attached to and forms an angle of approximately 90 degrees with rearmost said base side member.